1. <optics> Blurring of the visual image by glare. ... 2. <photography> An appearance as of a halo of light, surround the edges of dark object in a photographic picture. ... (21 Jun 2000) ... Found on http://www.encyclo.co.uk/local/20973

Halation is the effect that occurs when the bright areas of an image appear to softly bleed around the edges of dark areas. This is caused by light going through the emulsion layer, bouncing off the base of the film and exposing the adjacent emulsion. Some film is manufactured with a black anti-halation coating on the base side.Found on What to say when you are done shooting, either for the day, at that particu

Is a diffused ring of light typically formed around small brilliant highlight areas in the subject. It is caused by light passing straight through the emulsion and being reflected back by the film base on the light sensitive layer. This records slightly out of register with the original imageFound on http://www.encyclo.co.uk/local/21048

Is a diffused ring of light typically formed around small brilliant highlight areas in the subject. It is caused by light passing straight through the emulsion and being reflected back by the film base on the light sensitive layer. This records slightly out of register with the original image. The production of 'halos' round bright spots in an imag...Found on http://www.rodsmith.org.uk/photographic%20glossary/rods%20photographic%20gl

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